ACS downloaded files

Description of the files in $ ls /pyacs:

• column_lookup.csv contains {variable code : variable name}

/SUMFILE contains files formatted as data tables, where

• each row holds the attribute values for one geographic area
• Logical Record Number column denotes the ID of the geographic area
• columns after the Logical Record Number are values for the census variables
• the files are organized into sets of state files
• there are two types of sets of state files: variable estimates and errors (e<2011XXXX>.txt files contain estimates)
• Naming schema: <sequence#>.txt
• iterationID is usually 000
• each state datset has been sequenced into 113 chunks of text files
• m2011<stXXXX>.csv files are error margins associated to estimates

/GEO contains files where

• the Logical Record Number of an area is on the same row as the shapefile's FIPS code (geoid)
• areas are organized by states files, ie. g20115ak.csv, etc...